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Finding the Fourth Proportional to 133,068.80, 199,311.60 and 118,294.40

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Solution

The fourth proportional to 133,068.80, 199,311.60 and 118,294.40 is: 177,182.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,068.80 : 199,311.60 = 118,294.40 : x
  2. Step 2: Convert to fraction form
    133,068.80/199,311.60 = 118,294.40/x
  3. Step 3: Cross multiply
    133,068.80x = 199,311.60 × 118,294.40
  4. Step 4: Simplify right side
    133,068.80x = 23,577,446,135.04
  5. Step 5: Solve for x
    x = 23,577,446,135.04/133,068.80
  6. Step 6: Final answer
    x = 177,182.38

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.